Hammer

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Hammer

In candlestick charts, the representation of a trading day where a security trades significantly below its opening price for most of the day, but closes either above or close to the opening price. It is called a hammer because the candlestick representing the trading day looks somewhat like a hammer. It is not necessarily a bullish indicator, but a hammer may mean that the market is nearing a bottom.
References in classic literature ?
All night long the Martians were hammering and stirring, sleepless, indefatigable, at work upon the machines they were making ready, and ever and again a puff of greenish- white smoke whirled up to the starlit sky.
No, that screw can wait," said Adam, hammering away again.
For all the gates had been closed, and the Trojans were hammering at them to try and break their way through them.
Somebody tried to open my door, and walked about and through the house, and stood breathing heavily in the verandas, and just when I was falling asleep I fancied that I heard a wild hammering and clamoring above my head or on the door.